| 年度 | 实际值 |
|---|---|
| 1992 | 2551 |
| 1993 | |
| 1994 | |
| 1995 | 3664 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 15416 |
| 2000 | 15788 |
| 2001 | 19622 |
| 2002 | 24490 |
| 2003 | 27752 |
| 2004 | 35113 |
| 2005 | 45176 |
| 2006 | 65449 |
| 2007 | 94469 |
| 2008 | 110306 |
| 2009 | 131590 |
| 2010 | 163379 |
| 2011 | 202266 |
| 2012 | 250899 |
| 2013 | 272300 |
| 2014 | 268068 |
| 2015 | 333900 |
| 2016 | 337600 |